<template>
  <div id="myChart" :style="{width: '800px', height: '600px'}"></div>
</template>

<script>

import{
  article_tag
}from '@/api/chart/pie'

export default {
  name: 'Echarts',
  mounted(){

    article_tag(this.queryParams).then((response) => {
      console.log(response)

      // 基于准备好的dom，初始化echarts实例
      let myChart = this.$echarts.init(document.getElementById('myChart'))
      // 绘制图表
      myChart.setOption({
        backgroundColor: '#2c343c',
        title: {
          text: '水果销量统计',
          left: 'center',
          top: 20,
          textStyle: {
            color: '#ccc'
          }
        },

        tooltip: {
          trigger: 'item'
        },

        visualMap: {
          show: false,
          min: 80,
          max: 600,
          inRange: {
            colorLightness: [0, 1]
          }
        },
        series: [
          {
            name: '访问来源',
            type: 'pie',
            radius: '55%',
            center: ['50%', '50%'],
            data: response.sort(function (a, b) { return a.value - b.value; }),
            roseType: 'radius',
            label: {
              color: 'rgba(255, 255, 255, 0.3)'
            },
            labelLine: {
              lineStyle: {
                color: 'rgba(255, 255, 255, 0.3)'
              },
              smooth: 0.2,
              length: 10,
              length2: 20
            },
            itemStyle: {
              color: '#c23531',
              shadowBlur: 200,
              shadowColor: 'rgba(0, 0, 0, 0.5)'
            },

            animationType: 'scale',
            animationEasing: 'elasticOut',
            animationDelay: function (idx) {
              return Math.random() * 200;
            }
          }
        ]
      });
    })

  }
}
</script>
